No problem, we've got 2647 and 7071 to multiply
2647 × 7071 = 7071 × (2647)
+ 7071 × 7 producing 49497
+ 7071 × 40 what gives us 282840
+ 7071 × 600 giving us 4242600
+ 7071 × 2000 producing 14142000

= 18716937
